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Re: Advanced Engine Diagnosis (Aftermarket Warranty Claim...)
Posted to Technical Theory Forum on 4/20/2024 1 Reply

The old Ford 5.0 liter engines had a PCV filter under the PCV valve that most techs never replaced. They would clog up and the crankcase pressure would cause the rear main to leak or cause the valve covers to leak. I still have a homemade tool to extract the f... Login to read more.

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